Quick answers
- Is CVE-2026-116827 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-116827 being exploited in the wild.
- How severe is CVE-2026-116827?
- Medium severity, with a CVSS score of 6.8, published 27 October 2026.
- Which products and versions are affected?
- YesWiki before 4.7.0.
- Is there a fix for CVE-2026-116827?
- Yes: fixed in 4.7.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-116827 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-116827?
- Check whether you run YesWiki at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
How to fix
- Fixed in: 4.7.0
Technical details
The copyUrlToLocalFile() function in the Bazar CSV import action passes attacker-controlled URLs directly to curl without SSRF protection, protocol filtering, or hostname validation. Authenticated administrators can inject URLs targeting file://, gopher://, or dict:// schemes, exploit query-string bypasses of extension checks, or chain redirects to exfiltrate cloud metadata credentials and internal service responses to the web-accessible files/ directory.
Affected products
- YesWiki YesWiki before 4.7.0
Timeline
- 2026-10-12: disclosed: GitHub security advisory published
- 2026-10-27: advisory: NVD entry published